(4)  
Open the screen doors (if installed) for tire burst protection purpose in the left main wheel well to get access to the actuator.

 D. Procedure
 S 034-004
 (1)  
Disconnect the hydraulic lines from the hydraulic ports on the actuator. Seal the hydraulic lines and the hydraulic ports with plugs.

 S 034-005

 (2)  
Remove the electrical connectors from the actuator and the hydraulic pressure switch.

 S 034-006

 (3)  
Remove the hydraulic pressure switch. Seal the hydraulic port with a plug. Keep the hydraulic pressure switch.

 S 034-007

 (4)  
Remove the clamp-bolt, washer, and nut that attach the lever assembly to the actuator. Remove the nut and washer that attach the output shaft of the actuator to the lever assembly.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 214-017
 (5)
Try to turn the shear rivets by hand to see if they are loose.

 S 214-047

 (6)  
Quickly move the fitting and the arm of the lever assembly in opposite directions.

 S 214-048

 (7)  
If there is movement between the parts, one or both of the rivets are loose.

 S 214-049

 (8)  
Put a 0.0375 to 0.0395 inch (0.9525 to 1.0033 millimeter) diameter pin into the rivet inspection hole.

 (a)  
Make sure that the pin moves freely.

 (b)  
Repeat this step for the other rivet inspection hole.

 S 964-018
 (9)  If there is wear in the shear rivets then remove the lever assembly.
 (a)  Remove nut(s), bolt(s), washer(s), that attach to the rod assemblies.
 S 024-009
 (10)
 Remove the mounting bolts, washers, and nuts that hold the actuator.

 S 024-010

 (11)
 Remove the actuator.

 S 034-032

 (12)
 Remove the reducer and the union from the ports on the actuator. Seal the ports with plugs. Keep the reducer and the union.

 TASK 22-11-25-404-011
 3. Install the Autopilot Aileron Actuator (Fig. 401)
______________________________________
 A. Consumable Materials
 (1)  D00148 Fluid - Hydraulic, Fire Resistant, BMS 3-11,
 Type IV, Class 1

 B. References
 (1)  
AMM 22-11-25/501, Autopilot Aileron Actuator

 (2)  
24-22-00/201, Manual Control

 (3)  
27-11-00/201, Aileron and Aileron Trim Control System

 (4)  
29-15-00/201, Hydraulic Systems A, B, and Standby

 (5)  
32-00-01/201, Ground Lock Assemblies

 (6)  
OHM 27-09-05

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 C. Access
 (1)  Location Zone
 216 Left Main Wheel Well

 D. Prepare for the Installation
 S 864-012
 WARNING: ISOLATE OR TAG THE AILERON, ELEVATOR, RUDDER, SPOILER AND SPEED
_______ BRAKE CONTROL SYSTEMS. THESE SYSTEMS MAY MOVE SUDDENLY WHEN YOU REMOVE THE HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Make sure that you remove the hydraulic pressure from the aileron hydraulic systems A and B (Ref 27-11-00/201).

 S 864-013

 (2)  
Make sure that you open these circuit breakers and attach the DO-NOT-CLOSE tags:

 (a)  
P6 Circuit Breaker Panel
 1) AUTO FLT CONT SYS B MACH TRIM AC
 2) AUTO FLT CONT SYS B MACH TRIM DC
 3) AFDS MCP CRS-2
 4) AUTO FLT CONT SYS B SNSR EXC AC
 5) AUTO FLT CONT SYS B FCC DC
 6) AUTO FLT CONT SYS B ENGAGE INTLK B
 7) AUTO FLT CONT SYS B WARN LIGHT BAT

 (b)  
　
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